1：Newtonsoft.Json.dll 下载 http://json.codeplex.com/

2：解析JSON字符串

using Newtonsoft.Json;
using System.Text;

StringBuilder sb = new StringBuilder();
                string str = "[{ID:'1',Name:'John',Other:[{Age:'21',Sex:'0'}]},{ID:'2',Name:'Good',Other:[{Age:'36',Sex:'1'}]}]";
                JavaScriptArray javascript = (JavaScriptArray)JavaScriptConvert.DeserializeObject(str);

                for (int i = 0; i < javascript.Count; i++ )
                {
                    JavaScriptObject obj = (JavaScriptObject)javascript[i];
                    sb.Append("ID：" + obj["ID"].ToString());
                    sb.Append("Name：" + obj["Name"].ToString());
                    JavaScriptArray json = (JavaScriptArray)obj["Other"];

                    for (int j = 0; j < json.Count; j++){
                        JavaScriptObject jsonobj = (JavaScriptObject)json[j];
                        sb.Append("Age：" + jsonobj["Age"].ToString());
                        sb.Append("Sex：" + jsonobj["Sex"].ToString());
                    }
                }